Wheel Quadcopter that can Fly, Float, Crawl and Roll

This is not built for playing and aerial photography for fun.

This Quadcopter is built for industrial purposes.

MUWA: MULTI-FIELD UNIVERSAL WHEEL FOR AIR-LAND VEHICLE WITH QUAD VARIABLE-PITCH PROPELLERS

http://www.personal-drones.net/new-quadcopter-can-fly-roll-and-float-muwa-multi-field-universal-wheel-for-air-land-vehicle-with-quad-variable-pitch-propellers/


http://www.jsk.t.u-tokyo.ac.jp/index.html



http://spectrum.ieee.org/automaton/robotics/drones/iros-2013-quadrotor-wheel-can-fly-float-and-roll